Revert "Update bionic kernel headers using update_all.py"

This reverts commit 94a85f663694e1869acb1c2e8a3c374a6fa3ab86

There is a smoke test failure for Prime but Crespo/Stingray are fine. Will revert the change for now until further investigation is made.
diff --git a/libc/kernel/common/linux/ion.h b/libc/kernel/common/linux/ion.h
index b8715a3..ac8b264 100644
--- a/libc/kernel/common/linux/ion.h
+++ b/libc/kernel/common/linux/ion.h
@@ -64,3 +64,4 @@
 #define ION_IOC_IMPORT _IOWR(ION_IOC_MAGIC, 5, int)
 #define ION_IOC_CUSTOM _IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data)
 #endif
+